luajit: Add pkg-config script
luajit: Add pkg-config script

* Only needed for 5.1 compat

koletzky/haikuports,Begasus/haikuports,moochris/haikuports,Begasus/haikuports,moochris/haikuports,koletzky/haikuports,koletzky/haikuports,nielx/haikuports,Begasus/haikuports,haikuports/haikuports,miqlas/haikuports,haikuports/haikuports,miqlas/haikuports,nielx/haikuports,Begasus/haikuports,haikuports/haikuports,moochris/haikuports,miqlas/haikuports,haikuports/haikuports,Begasus/haikuports,nielx/haikuports,haikuports/haikuports